<!DOCTYPE html>
<html>
<head>
<title>CSS3核心模块</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<style type="text/css">
html,
body,
h1,
h2,
h3,
h4,
h5,
h6,
p,
blockquote,
ol,
ul,
li,
img {
    margin: 0;
    padding: 0;
    font-size: 100%;
    font: inherit;
    vertical-align: baseline;
}

html * {
    font-family: "ff-din-web-pro-1", "ff-din-web-pro-2", sans-serif;
    font-size: 16px;
    line-height: 19.2px;
    color-profile: sRGB;
}

body {
    min-width: 32em;
    max-width: 56em;
    margin: 10px auto;
}

p, blockquote p {
    line-height: 1.6;
}

ul, ol {
    margin: 16px 0;
}

ul li, ol li {
    line-height: 1.6;
}

p {
    font-weight: lighter;
    margin: 10px 0;
}

strong {
    font-weight: bold;
}

ol,
ul {
    margin-left: 2em;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: lighter;
    text-transform: capitalize;
    margin: 20px 0;
    border-bottom: 1px solid;
    padding-bottom: 6px;
}

h1, h1 > code {
    font-size: 24.624px;
    line-height: 29.548799999999996px;
}

h2, h2 > code {
    font-size: 24.624px;
    line-height: 29.548799999999996px;
}

h3, h3 > code {
    font-size: 23.44px;
    line-height: 28.128px;
}

h4, h4 > code {
    font-size: 22.16px;
    line-height: 26.592px;
}

h5, h5 > code {
    font-size: 22.16px;
    line-height: 26.592px;
}

h6, h6 > code {
    font-size: 22.16px;
    line-height: 26.592px;
}

img {
    margin-bottom: 20px;
}

h1 img,
h2 img,
h3 img,
h4 img,
h5 img,
h6 img,
p img {
    margin-bottom: 0;
}

pre,
code {
    font-family: monospace, Consolas, "Source Code Pro", Arial, sans-serif;
    color: #586e75;
    background-color: #eee8d5;
}

pre {
    white-space: pre-wrap;
    word-wrap: break-word;
    padding: 12px;
    margin-bottom: 20px;
}

code {
    border-radius: 3px;
}

h1 {
    text-transform: uppercase;
    font-weight: bold;
}

h3,
h4,
h5,
h6 {
    border-bottom: none;
}

html * {
    color: #657b83;
}

html body {
    background-color: #fdf6e3;
}

html h1,
html h2,
html h3,
html h4,
html h5,
html h6 {
    color: #586e75;
    border-color: #657b83;
}

html a,
html a:active,
html a:visited {
    color: #586e75;
    text-decoration: none;
    border-bottom: 1px dashed;
    border-radius: 2px;
}

html a:hover {
    background-color: #eee8d5;
}

blockquote a:hover {
    background-color: #fdf6e3;
}

html a,
html a:active,
html a:visited,
html code.url {
    color: #b58900;
}

html h1 {
    color: #b58900;
}

html h2,
html h3,
html h4,
html h5,
html h6 {
    color: #b58900;
}

/* QUOTES
=============================================================================*/
blockquote {
    border-left: 4px solid #b58900;
    padding: 12px;
    background: #eee8d5;
    border-bottom-right-radius: 2px;
}

blockquote code {
    background: #fdf6e3;
}

blockquote > :first-child {
    margin-top: 0;
}

blockquote > :last-child {
    margin-bottom: 0;
}

/* TABLES
=============================================================================*/
table {
    margin: 0 auto;
    border-collapse: collapse;
    width: 100%;
    box-sizing: border-box;
    margin-bottom: 30px;
}

table th, table td {
    border: 1px solid #ccc;
    padding: 6px 13px;
}

table td {
    word-break: break-word;
    line-height: 1.3;
}

table th {
    font-weight: bold;
    text-align: center !important;
    background-color: #eee8d5;
}

table tr {
    border-top: 1px solid #ccc;
    background-color: #fdf6e3;
}

/* IMAGES
=============================================================================*/
img {
    max-width: 100%;
}

p > img {
    display: table;
    margin: 0 auto;
}

p code, li code, td code {
    padding: 1px 3px;
    border-radius: 3px;
}

.cp_embed_wrapper {
    margin: 20px 0;
}

@media screen and (min-width: 980px) and (max-width: 980px) {	
    table thead tr th,
    table thead tr th > code,
    table tbody tr td,
    table tbody tr td > code,
    table tbody tr td > strong {
        font-size: 1.3em;
        line-height: 1.3;
    }

    p, p code,
    p strong, p strong > code,
    blockquote p {
        font-size: 1.3em;
        line-height: 1.6;
    }

    pre > code,
    ul li pre > code,
    ol li pre > code{
		font-size: 1.3em;
        line-height: 1.3;    	
    }	
	

    ul li, ol li,
    ul li > code,
    ol li > code {
        font-size: 1.3em;
		line-height: 1.3;          
    }

    ul {
        margin-left: 3.4em;
    }

    ol {
        margin-left: 3.6em;
    }
}
</style>
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.highlight .gu { color: #aaaaaa } /* Generic.Subheading */
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.highlight .kc { font-weight: bold } /* Keyword.Constant */
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.highlight .na { color: #008080 } /* Name.Attribute */
.highlight .nb { color: #0086B3 } /* Name.Builtin */
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.highlight .nv { color: #008080 } /* Name.Variable */
.highlight .ow { font-weight: bold } /* Operator.Word */
.highlight .w { color: #bbbbbb } /* Text.Whitespace */
.highlight .mf { color: #009999 } /* Literal.Number.Float */
.highlight .mh { color: #009999 } /* Literal.Number.Hex */
.highlight .mi { color: #009999 } /* Literal.Number.Integer */
.highlight .mo { color: #009999 } /* Literal.Number.Oct */
.highlight .sb { color: #d14 } /* Literal.String.Backtick */
.highlight .sc { color: #d14 } /* Literal.String.Char */
.highlight .sd { color: #d14 } /* Literal.String.Doc */
.highlight .s2 { color: #d14 } /* Literal.String.Double */
.highlight .se { color: #d14 } /* Literal.String.Escape */
.highlight .sh { color: #d14 } /* Literal.String.Heredoc */
.highlight .si { color: #d14 } /* Literal.String.Interpol */
.highlight .sx { color: #d14 } /* Literal.String.Other */
.highlight .sr { color: #009926 } /* Literal.String.Regex */
.highlight .s1 { color: #d14 } /* Literal.String.Single */
.highlight .ss { color: #990073 } /* Literal.String.Symbol */
.highlight .bp { color: #999999 } /* Name.Builtin.Pseudo */
.highlight .vc { color: #008080 } /* Name.Variable.Class */
.highlight .vg { color: #008080 } /* Name.Variable.Global */
.highlight .vi { color: #008080 } /* Name.Variable.Instance */
.highlight .il { color: #009999 } /* Literal.Number.Integer.Long */
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.pl-id {
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    color: #1d3e81;
    font-weight: bold;
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.pl-mb {
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margin-right:3px;
vertical-align:1px;
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</style>
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<body>
<h1 id="css3-">CSS3核心模块</h1>
<p><strong>过渡动画</strong></p>
<ul>
<li><code>transition</code>：过渡动画<ul>
<li><code>transition-property</code>：过渡属性 <code>all[attr]</code></li><li><code>transition-duration</code>：过渡时间</li><li><code>transition-delay</code>：延迟时间</li><li><code>transition-timing-function</code>：运行类型<ul>
<li><code>ease</code>：（逐渐变慢）默认值</li><li><code>linear</code>：匀速</li><li><code>ease-in</code>：加速</li><li><code>ease-out</code>：减速</li><li><code>cubic-bezier</code>：贝塞尔曲线</li></ul>
</li></ul>
</li></ul>
<p>过渡动画效果思考步骤：</p>
<ol>
<li>找到过渡属性</li><li>找到过渡属性起始值和结束值</li><li>在合适的位置上增加<code>transition</code>属性</li></ol>
<p><strong>2D变换</strong></p>
<ul>
<li><code>transform</code>：变形属性<ul>
<li><code>rotate()</code>：旋转函数<ul>
<li><code>deg</code>：度数</li><li><code>transform-origin</code>：旋转的基点</li></ul>
</li><li><code>skew()</code>：倾斜函数<ul>
<li><code>skewX()</code></li><li><code>skewY()</code></li></ul>
</li><li><code>scale()</code>：缩放函数 默认值是1<ul>
<li><code>scaleX()</code></li><li><code>scaleY()</code></li></ul>
</li><li><code>translate()</code>：位移函数<ul>
<li><code>translateX()</code></li><li><code>translateY()</code></li></ul>
</li></ul>
</li></ul>
<p><strong>animation-声明关键帧</strong></p>
<ul>
<li>关键帧——<code>@keyframes</code><ul>
<li>类似于<code>flash</code><ul>
<li>定义动画在每个阶段的样式，即帧动画</li></ul>
</li><li>关键帧的时间单位<ul>
<li>数字：<code>0%</code>、<code>25%</code>、<code>100%</code>等（设置某个时间段内任意时间点的样式）</li><li>字符：<code>from(0%)</code>、<code>to(100%)</code>：</li></ul>
</li><li>格式<ul>
<li><code>@keyframes</code>：动画名称</li><li><code>{动画状态}</code></li></ul>
</li></ul>
</li></ul>
<p><strong>animation-调用动画</strong></p>
<ul>
<li>必要属性<ul>
<li><code>animation-name</code>：动画名称（关键帧名称）</li><li><code>animation-duration</code>：动画执行时间</li></ul>
</li><li>可选属性：<ul>
<li><code>animation-timing-function</code><ul>
<li><code>linear</code>：匀速</li><li><code>ease</code>：缓冲</li><li><code>ease-in</code>：由慢到快</li><li><code>ease-out</code>：由快到慢</li><li><code>ease-in-out</code>：由慢到快再到慢</li><li><code>ease-bezier(num,num,num,num)</code>：特定的贝塞尔曲线类型，4个数值需在[0,1]区间内</li></ul>
</li><li><code>animation-delay</code>：动画延迟</li><li><code>animation-iteration-count</code>：重复次数</li><li><code>animation-direction</code>：动画运行的方向 <code>normal|reverse|alternate|alternate-reverse</code></li><li><code>animation-play-state</code>：动画状态 <code>running|paused</code></li><li><code>animation-fill-mode</code>：动画结束后的状态 <code>none|forwards|backwards|both</code></li></ul>
</li></ul>
<p><strong>3D变换</strong></p>
<ul>
<li><code>transform-style: flat|preserve-3d</code>：3D空间展示</li><li><code>perspective</code>：景深效果</li><li><code>transform: persective(800px)</code>：直接作用在子元素上</li><li><code>transform</code>：新增函数<ul>
<li><code>translate3d(tx, ty, tz)</code>：<code>translateX()</code> <code>translateY()</code> <code>translateZ()</code></li><li><code>rotate3d(rx, ry, rz, a)</code>：<code>rotateX()</code> <code>rotateY()</code> <code>rotateZ()</code></li><li><code>scale3d(sx, sy, sz)</code>：<code>sacleX()</code> <code>sacleY()</code> <code>sacleZ()</code></li></ul>
</li></ul>
<p><strong>圆角 border-radius</strong></p>
<ul>
<li><code>border-radius</code>：1-4个数字/1-4个数字<ul>
<li>水平半径/垂直半径</li><li>四个数字方向分别是<strong>左上 右上 右下 左下</strong></li><li>没有<code>/</code>则水平半径和垂直半径一样<ul>
<li><code>border-radius: 10px/5px;</code></li><li>border-radius: 60px 40px 30px 30px/30px 20px 10px 5px</li><li>例子：圆 椭圆 半圆 扇形</li></ul>
</li></ul>
</li></ul>
<p><strong>线性渐变 linear-gradient</strong></p>
<ul>
<li><code>linear-gradient</code>：（[&lt;起点&gt;||&lt;角度&gt;,]?&lt;点&gt;,&lt;点&gt;…）</li><li>只能用在背景上</li><li>颜色是沿着一条直线轴变化</li><li>参数<ul>
<li>起点：开始渐变方向</li><li>角度：开始渐变角度</li><li>点：渐变点的颜色和位置</li></ul>
</li><li>重复线性渐变</li></ul>
<p><strong>径向渐变 radial-gradient</strong></p>
<ul>
<li><code>radial-gradient</code></li><li>从“一点”向多个方向颜色渐变</li><li><code>shape</code>形状：<code>ellipse</code>、<code>circle</code>或设置水平半径，垂直半径</li><li><code>size</code>：渐变的大小，即渐变停止位置：<ul>
<li><code>closet-side</code>：最左边</li><li><code>farthest-side</code>：最远边</li><li><code>closet-corner</code>：最近角</li><li><code>farthest-corner</code>：最远角（默认值）</li></ul>
</li><li><code>position</code>：关键词|数值|百分比</li><li>重复的径向渐变</li></ul>
<p><strong>背景</strong></p>
<ul>
<li><code>background-origin</code><ul>
<li><code>padding-box</code>：从<code>padding</code>区域显示</li><li><code>border-box</code>：从<code>border</code>区域显示</li><li><code>content-box</code>：从<code>content</code>区域显示</li></ul>
</li><li><code>background-clip</code><ul>
<li><code>padding-box</code>：从<code>padding</code>区域向外裁剪</li><li><code>border- box</code>：从<code>border</code>区域向外裁剪</li><li><code>content-box</code>：从<code>content</code>区域向外裁剪</li><li><code>text</code>：文本裁剪</li></ul>
</li><li><code>background-size</code><ul>
<li><code>100% 100%</code>：百分比</li><li><code>10px 10px</code>：数值</li><li><code>contain</code>：按原始比例收缩，背景图显示完整，但不一定铺满整个容器</li><li><code>cover</code>：按原比例收缩，背景图可能显示不完整，但铺满整个容器</li></ul>
</li><li><code>background-attachment</code><ul>
<li>背景图片是滚动/固定 <code>fixed</code>(固定的) 默认是滚动的</li></ul>
</li></ul>
<p><strong>盒子阴影</strong></p>
<ul>
<li><code>box-shadow</code>：h v blur spread color inset;<ul>
<li><code>h</code>：水平方向偏移</li><li><code>v</code>：垂直方向偏移</li><li><code>blur</code>：模糊半径</li><li><code>spread</code>：扩展半径</li><li><code>color</code>：颜色</li><li><code>inset</code>：内阴影，默认是外阴影</li></ul>
</li></ul>
<p><strong>文本阴影</strong></p>
<ul>
<li><p><code>text-shadow</code>：x y blur color</p>
<ul>
<li><code>x</code>轴偏移 <code>y</code>轴偏移 模糊度 颜色</li><li>多层阴影制作文字立体效果，设置多种颜色，中间以逗号隔开</li></ul>
</li><li><p>文字添加边框</p>
<ul>
<li><code>text-stroke</code>：2px blue<ul>
<li>通过设定<code>1px</code>的透明边框，可以让文字变得平滑</li><li>颜色设成透明能够创建镂空字体</li></ul>
</li></ul>
</li></ul>
<p><strong>滤镜</strong></p>
<ul>
<li><code>-webkit-filter:normal;</code>：正常</li><li><code>-webkit-filter:grayscale(1);</code>：灰度，取值范围0-1</li><li><code>-webkit-filter:brightness(0);</code>：亮度，取值范围0-1</li><li><code>-webkit-filter:invert(1);</code>：反色，取值范围0-1，0为原图，1为彻底反色</li><li><code>-webkit-filter:sepia(0.5);</code>：叠加褐色，取值范围0-1</li><li><code>-webkit-filter:hue-rotate(30deg);</code>：色相（按照色相环旋转，顺时针方向）（红-橙-黄-黄绿-绿-蓝绿-蓝-蓝紫-紫-紫红-红）此处为叠加黄色滤镜</li><li><code>-webkit-filter:saturate(4);</code>：饱和度，取值范围0-*，0为无饱和度，1为原图，值越高，饱和度越大</li><li><code>-webkit-filter:contrast(2);</code>：对比度，取值范围0-*，0为无对比度（灰色），1为原图，值越高对比度越大</li><li><code>-webkit-filter:opacity(0.8);</code>：透明度，取值范围0-1，0为全透明，1为原图</li></ul>
<p><strong>遮罩</strong></p>
<ul>
<li><code>mask-image</code>：</li><li><code>mask-position</code>：</li><li><code>mask-repeat</code>：</li></ul>

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